Combination drive down and pulling spear



May 18 1926.

P. M. REA

COMBINATION DRIVE DOWN AND PULLING SPEAR May 18 1,9225.

L P. M. REA

GOMBINATIQN DRIVE DOWN AND PULLING SPEAR 2 Sheets-She'r. 2

Filed Jan. 5. 1925 Patented May l, l.

PHILEPVM. REA, '0F ELGIN, ILLINOIS, ASSIGZGR TO UNON TOOL COMPANY, OFTGRRANCE, CALIFGRNA, A CRPOEAIGN OE GAIJIFOBNIA.

`GXIW'IBINUTIN DRIVE DGVJN AND PULLING' SPEAK.

Application filed January 5, 1&25. Serial No. 725.

This invention relates to a casing spear, and the general object oi theinvention is to produce a. combination drive down and pulling spear ofsimple construction and in 5 which the slips can be controlled by upjars and down jars; also to produce a spear ci this type in which theuse of a spring is avoided for pressing the pull-up slips into theircontracted position; a further object oit the invention is to improvethe general construction of casing spears ci this type and particularlyto provide an improved means for controlling the same through the agencyof a drag spring Within the casino.

l.*`u rt`ner objects of the invention Will appear hereinafter.y

The invention consists in the novel parts 'and combination of parts tobe described hereinafter, all of which contribute to produce aneiiicient combination drive down and pulling spear.

A preferred embodiment of the invention is described in the followingspeeiication7 While the broad scope of the invention is' .1.3 pointedout in the appended claims.

in the drawings:

Fig. l is a side elevation of a casing spear embodying my invention andshowing the saine Within a length of casing, Which is shown in section;certain parts are broken away.

Fig. 2 is a vertical section through the casino' spear shown in Fig. l,certain parts being broken away orlshovvn in elevation; this vien7 isupon an enlarged scale and shows the parts in the relation which theyhave when the spear is passing down thecasing. Fig. 8 is a cross sectionupon an enlarged scale, taken on the line 3 3 oi' Fig. l.

Figli is a section taken on the line 1 -l ci Fic. 2.

lFig. 5 is a vertical section similar to Fie. but showing the parts inthe relation which they have after the spear has been o erated in such aWay as to set the slips against the casing Wall.

(i is a cross section taken on the line 6-6 of Fig. 5.

iig. 7 is a vertical section taken through ip device and illustratingdetails of its consi'nction and also details ci the means which l mayemploy for engaging the down jar slips to set them againstthe casing.

Fig. 8 is a side elevation of a setting, tool which inlay employ tovia-cilitate setting the rverge in an upward direction. Words, theseslipswlll contract in a relatively parts of the spear preparatory tosending it down the casing.

In practicing vmy invention, I provide a body l, the upper portion ofwhich is constructed forl attachment to the lower end of 60 the toolstring, the upper end of the body being preferably provided with asquare 2 belowT Which the body is provided with pull-up slips; theseslips are mounted on the body in such a Way that they have a contractedor collapsed position and also an expanded position, in the latter ofwhich they Will engage the Wall of the. casing 3. In the presentinstance I provide three of these pull-up slips @which are guided toslide on dovetailed slipways 5 which conln.' other elevated position,and when in a relatively depressed position will be expanded. Belo-.vthe location of the pull-up slips the body is preferably formed intoareduced stem 6 on Which a sleeve .7 is mounted to slide up or down. Iprovide a latch device 8 for latching this sleeve to the stern 6 of thebody o (see Fig. and this latch device is prei'- erably controlledv byineens of a drag spring 9 (see Fig. 2). The outer side of the sleeve isprovided with a plurality oifdown jar slips Which have a contractedposition and an expanded position. In the present instance l providethree d^own-jar slips 1U, which are guided to slide on slipvvays l1respectively, and these slipways converge toward the axis of the body inan opposite direction from the slipvv'ays 5 which guide the pull-upslips Li.

The lower end oi the sleeve 7 is formed into a collar lQ-which'acts as astop to limit the downward movement of the dcvvn jar slips 10.

The latching device 8 preferably includes a trigger'l which is movablymounted on collar i2 so as to swing in a transverse plane with respectto the axis oi' the body. l preiler to mount this trigger on a tubularpivot pin lll. The stein 6 of the body is provided with means tocooperate With the trigger 13 to hold the latch orsleeve againstmovement along the body. For this purpose. the stein is provided with atransverse notch or recess 15, which is engaged by a finiti formed onthe inner side of the trigger.v

rihe trigger 13 is normally held. in its iatcliiug position in which*Vit is shown in lili) Figure flby detentmeans connected with the d 'agspring E), and the construction is such that when the body is pulledupwardly the ci"L spring' 9 will release the latch device 8 and enablethe trigger 13 to disengag'e itseltfrom the stein, thereby permitting'the sleeve T and the down jar 10 to descend b v gravity on the hody. lnthe present instance, the detent; nieans is in the torni of a push rod1.7. the lower end of which is attached to the wiper head 1S ot the dragspring. rlie upper end et this push rod is received in an opening 19 inthe collar 1Q and engages the outer side ot the tr'k er (see Fig'. 2).ln addition to this. l constructl the push rod 17 so that it will engagethe trigger 13 in such a way that the trigger will prevent the drag*springtl troni moving upvvardljv' relatively to the sleeve when thespear is being; `iasfied down the casing'. For this purpose, l providethe push rod 1T with a shoulder '2O which engages the under face ot thetrigger.

l ilse provide nieans in the forni ot' a coil si ng 21 to force t-hetrigger 13 outward`i vhon the push rod 1T releases it (see Fir', -Withthis organization ot parts, itwill be evident that it the body is palletupvv'ardly the drag; spring will drag' in the casing` and vill pull thepush rod 1T avay troni the trigger. The trigg'e' will then release thesleeve 'T which will descend by gri vity, carrying with it the down jarslips l0.

ips 10 to rive thein a relative upward inovennuiton the sleeve when thesleeve descends. ant'` this relative upward movenient will set themagainst the ear-ning'. In order to engage Ithe down-jar slips assuglgesied, l may utilize. the push rod 1 fe one of the slips which niavl alignment with it. In order to ont; e other two dowirjar slips. lprovide tv o puso rods :'Z'Z l`igrl) which are similar in constructionto the push rod l?. except that they are'devoid oi any should such asthe shoulder Q0. and their upper ends are simply provided vitl inclinedtaces L-l on their inner Sides so as to clear the slipways 'll when tl esleeve dese-ends; in otherl words7 when thil sl eve des ends these pushrods through openings in the collar 2 and thereafter engage the lowerends o their correct ending' down-jar slips. @ne oi these push rodirv isin alignment with t lar pivot pin 1l and Slides tarotl collar at thatpoint. lter the tri is released. its springr 2l nieves i a stop pin 2l(see Fig. l) which a notch Q5 on the outer edge of tl e The trigger isconstrueted'so that when n i ts outermost or unlatched position.` itwill iot obstruct any t thepush rods-y an'd will o :init them to returnand nieve up through the collar. For this purpose, the outer end oi' thetrigger is provided with a cutaway portion or throat Q6, which willalign with the special push rod 17 when the trigger is "open7 or in itsrelease position. ln order to insuri` the alignment of the push rods li'and Q2 with their corresponding openings in the collar. l provide ineansfor preventing rotation ol the sleeve and the d 'ag spring' il on 'thestein (3. For this purpose the stein is provided with a longitudinalkeyway 2T (sce 2l and the sleeve is provided with .pins 2S which run inthis heyway. ln a similar way the heads 1S and 2!) of the drag' springlare provided with pins 3U which also run in this key slot 27.

The sleeve 'T is mounted in such a wav thafb it can support the pull-upslips l. lu order to accomplish this l preler to provide a collar 31which slides on the stein (3 just just above the sleeve, and this collaris connected by three stems or hook rods 3'2 with the lower ends of theslips 4. ln other words, the upper end ot each stein has a lateralextension 33 which slides freely in an opening 3l in the lower end ofthe slip. rrs the slip rises in its slipway, ol? course the extension orhook '1l-"l will enter furthe." into the opening in order to enahle thedownward niovenientl ot' the bod)7 through the sleeve T to engage orpick up the sleeve 7 so that the upward movement of the body thereaftercan raise the sleeve 7, l provide the body with a trip device 35 (seeFigs. '2 and 'Tl This trip device is in the t'orin ot' a catch orcatch-plate 3G set in a longitudinal slot in the side ol the stein. Thisplate is provide-d with a shoulder 3T to engage with the lower end ot'the sleeve, hut when the spear is passing down the casing this catch 216is held in its retracted position by the leeve (nfl-ce Fie. 1"). sirallcoil sprl SH acl; ot the ea ch all'oi'ds ineans tor torchio' it ut intoits ex enden position. when the stein lescends tar enough to enable theshouhler to clear the lower end o'' the sleeve. Alitter this occurs. ofcourse` the sleeve will l e held above the catch. ln this connefaion.should be uinlerstood that, when the body is inoved downwardly in thisway. the slipwill have d tcnded also so that the be relaiivelv elevatedin the A l will C slipways. and this will hold theni ont iiac'eincntwiththe casing wall. ln other t, s. when the trip device 215 is holdine; iesleeve T ele ated, it will also hold the ipe lelevated, because they aresupported i the collar 3l. llence. in thisl position i the sleeve thepull-up slips will he held d'sengaged and away from the casiiniA topern'iit the spear to be v-'ithdrawn troni the casing. vrlie lower endoli the catch plate Il@ oi11ied-u'itli a shoulder lli) which ehages 'theadjacent wall of Ithe trip 'slot lo and limits the entwarf movement ofthe catch (see Fig. At the lower end ot the stem I provide a roundednut41 which prevents the drag spring` from passing ed of the stem and the yrounded lower face of this nut will Guide the spear in passing it downthe casing.

ln order to assist the operator of the spear and facilitate setting thetrigger 13' in the notch 15,1 provide the outer side 'ot the triggerwith a small socket 42 to receive the end of a wire or pin. By the useof such an instrument, the trigger can be pushedinto the notchcompressing its spring 21,*and when the trigger is in its latehingposition, the drag spring 9 should then be positioned so that the pushrod 17 will engage the back of the trigger and hold it in place. n

ln order to assist the operator of the device and facilitate the liftingof the sleeve, l provide the setting tool which is illustrated in Figure8. Thisrtool includes a trip 43 which may be inserted in a socket 44 inthe side oi the stem 6 (see Fig. 2). After being inserted inthis socket,the setting tool can be rotated so that its cam 45 will engage the underface or" the collar 12 and will raise the collar. In this way the sleevecan be raised suiliciently to taire its weight ed the shoulder 3"? andthe catch 86 can then be forced inwardly and the sleeve then permittedto descend over the catch so that its lower edge is below the shoulde-r37.

I shall now describe the mode of operatior` or" this casing spear: lVhenthe casing spear passing dci-vn the casing, the lower edge of the sleeveoverlaps the trip or catch 86, as the spear descends, the drag` spring 9drags on the wall oi' the casing and holds the shoulder 2O up againstthe undertace ot' the trigger 13. The projecting end oi' the f push rod171 beyond the shoulder 20 holds will ,cause them to raise the casing,

the trigger in its latching position. The down-jar slips l() resting onthe cellar 12 are out ot contact with the wall of theV casing. W'Vhenthe parts are in this relation, the

sleeve 7 is suiiiciently elevated to hold the vpull-ing Vslips 4 out ofcontact with the wall of the casing.

When thespear has descended to the level at which it is to grip thecasing tor up jar `against the casing wallready to grip it tor Aan uppull'or up gar. An up pull will grip the slips 4 tightly against thecasing, that 1s,

cite so that they can end lol: the sleeve 7, which enables the stem Ytopick up ene sleeve. By pulling up on.

the body thereafter, the rsleeve 7 will slide further up on the slips 10and they will drop down to their releasing position where they aresupported on the collar 12. The casing' spear can then be withdrawn.

It is understood that the embodiment oi the invention described hereinis only one ot the many embodiments this invention maytalre, and I donot wish'to be limited in the practice or the invention, nor in theclaims, to the particular embodiment set forth. Y

l-Vhat I claim is 1. ln a combination drivedown and pulling spear, thecombination of a body, pull-up slips guided on the body so as to expandby relative downward movement on the body, a sleeve mounted to slide onthe body, downjar slips guided on the sleeve so as to expand by relativedownward movement of the sleeve on the slips, a latch device forlatching the sleeve against movement along the body, a drag springhaving means for holdingl the latch device in its latching position andcooperatingwith the latch device to release the same upon an upward pullot the body, means for supporting the pull-up slips on the sleeve, saidsleeve and pull-up slips cooperating upon the release ot the latch de'-vice, to descend and set the pull-up slips and the down-jar slips inengagement with the casing.

2. ln a combination drive-down and pulling spear, the combination oi abody, pull-up slips guided on the body so as to expand by relativedownward movement on the body, a sleeve mounted to slide on the body,downjar slips guided on the sleeve so as to expand by relative downwardmovement oi? the sleeve on the slips, a latch device Jfor latching thesleeve against movement along the body, a drag` spring having means forholding the latch device in its latching position and cooperating withthe latch device to release the saine upon an upward pull of the body,means for supporting the pull-up slips on the sleeve, said sleeve andpull-up slips cooperating upon the release of the latch deslips, and atrip device 'carried'by the body constructd t0 cooperate with the'sleeve upon position, whereby an up-pull on the body will operate torelease the down-jui: b1 s and permit the easing spear to be Withdrown.

3. :i combination drive-down und pullsnenr, tL notion oi? u body,pullinovenient or device in tbe torni ot' a trigger nieu to the body.Suid bod v having ineen. to cooperate with the tri; to latch tbe .sleeveagainst n'ioveinent n .eng tbe body, e drag spring having ineens lorholding the trigger in its lateliing position inl with the "hitch deviceupon un upvvzird null ot nssoeiited with ne to its disenguging po" i if;relesif'ed bj: tlie.iip-.\'nid pull ineens for suppoting die pnl the.said sleeve und pnl operating upon the release ot to descend and eet tlc pullfup sli down-jar slips ii, en .fzjiteezuent easing.

l. ln u eoinoination drive-down und pull-- ing;- spear, the combinationof u body, pullnp-slips `guided on the body so no to expand by relative.downward movement on the boey, o sleeve mounted to slide on the body,donn-jin- .slips lguided ni the sleeve 15o to expand by relativedownward movementI ot the sleeve en the slips, o lot-eh device in theiorni of a trigger nifwubly mounted on the sleeve, said body havingnieone to Cooperate with the trigger for bitching' tbe sleeve againstmovement along' the body, i drug spring niovubly inounted on the bodybeloiv the Sleeve, detent. ineens carried by the dine' spring' Aforholding the 1n its lutebing position v-:hile the cusino'ispeur ispassing down the using and eooperut'ng with the eer upon zin up-puli oi?thev the trigger and pei-ini the iz pull-up slips to descend by )ringhaving' nie; ne for iizr Slipe vi'lierebj.' is tbe down-jur th siip Y i:ind the pull-up eli is ie cosine und enables zin up pull thereafter topull the eesing through the operation of' tbe pull-up slips.

. In :i eoznbnnition drive-doivn um ing spear, the eoniliinition of :ibody, peilui slips Lejuided on the body so as to eXp-and by.' rele-.tvodownward movement on the body` :i sleeve nioi nted to .slide ontheybody, down-ju `l ips guided on the Sleeve so es to l by lele drmldfjlioveiilelit the 'C-rin o?? u tr' inovzdily inoont "l on thefil-eve ,--nid boe ivinp; intens to eoopernte 'with die tr er forbitching the sleeve against inovenient :dong the body, :i drug; spring novzibly nier-.lifted on the body bel'rv the sleeve, detent niefinscarried b v the -i 'ingv ior hoiding the trie in iis,

position while the eus-ing Speer is down the casino' und eoopei-:dfngtrioe'er upon un up-pull of tht "-ie und permit the nir-up s ips todescend by' spring' bovino; nieuns iei 'ns whereby t ,e

i' the Sleeve set ri )ull-nn e" 1.o: efinole.L :in iii; p1 Y o pi i @Siig il 'oi 'b tbc operation o? the pull-n1;

e earner in,E to pei'- nit tie body to slide i ivvardly throrzifb hesleeve, and trip means carried by tbe )ogy operating upon the reloiedou'i nioveniei" o'l tbe body position with t i 'i treni tbe ivre e" e'i r i A' l on the bo'` y thro-eo ,irl release the. down-,ier .slip fr nd e eas,- iig and ierinit th`4 spezuf to be with/"A (i, i i1 conbinsition drive-down und pub i binution of n body, pulls, the body,pull-12p felipe i the said slipivnys und cooperatthe bodj.v upon un nppnd to grip i raise the t 1 :i id sinne, :i slewie' slide on the bodybelovitbe pull n t end having' dev-fn-,izir slipviuys e ip; tovvrxi'etbe :itis o' the body in n doivi ef-ivd direction, down-jur slips euronthe lzie :nid eot nznned Slipiriiys be sleeve upon :i recitivt yg-I lingepe. is panas tle cosine' und iinpzilt the down-fur to cucine", inezfisfor 'importing the slips en the sleeve, n di 11;? spring in` niountedon. trie body beloiv the dinan-i:`

o latch device carried bv the e,

\. device when the ei enising :ine operatingA to hold :itch device inits bitching" iosti'; in. aid drag; springoperating' upon un up pull nthe body, to release the luteh device roin Vthe detent nie-ons undpermit the sleeve und pull-up slips to descend b v gin ity, ivhereby anup mr on the body will up the pull-up slips vfitb the easing to raisethe suine, sind detent ineens operuting upon the `des/cnt of the sleeveto engfigje a down-3er slip and cooperate vvith the' de- Sii lbf)

scending sleeve to set the same against the casing wall, said bodyoperating upon a down-jar to descend through the sleeve, means carriedby 'me body operating upon the said deseendlng movement of the bodythrough the sleeve to engage the sleeve to pick-up the sleeve on thebody after the downward movement ot the bot y has released the pull upslips, whereby an upward pull on the body thereafter will produce arelative upward movement ol the sleeve with respect to the down-jarslips, thereby releasing the same and permitting the casing saear to bewithdrawn.

7. In a combination drive-down and pulling spear, thecombination ot abody, pullup slips guided on the body so as to expand by a relativedownward movement from the body, a sleeve mounted to slide on the bodybelow the pull-up slips, means associated with the sleeve to enable anupwarr1 movement thereoie to raise the ypull-up slips in their slipways,down-jar slips carried on the sleeve, a latch device carried by thesleeve, said body having means cooperating with the latch device tolatch the sleeve against movement along the body, a drag spring mountedto slide on the body below the sleeve, a push rod corresponding to eachdown-jar slip and carried by the drag spring, one of said push rodsconstructed to engage the latch device and cooperating with the same tohold kit in its latchng position, Y

the late-h deviceoperating to prevent the push rods having a relativeupward movement with respect to the sleeve when the casing spear ispassing down the casing, said drag spring operating upon an up pull or"the body to Withdraw the push rods, said latch device having means forreleasing the same upon the withdrawal of the push rods, said sleeveoperating thereafter to descend by gravity, said down-jar slips being inalignment with the push rods whereby the descent of thel sleeve engagesthe down-3' ar slips w-ith the push rods and eiects a relative downwardmovement of the sleeve with respect to the jar-down slips `to setthesame against the casing, the descent 01"?y the said sleeve operating topermit a descent of the pullup slips to set them against the Acasing forpulling to set them against the casing carried by the said bodyoperatingupon a 'down-jar to descend with the body and engage the sleeveso as to pick up the sleeve on the body, and thereby lool; the pullupslips in their contacted position, said body and sleeve cooperatingthereafter on an up pull oit the body to release the down-jar slips andenable the casing spear to be withdrawn.

8. ln a combination pulling spear, the combination of a body, pull-upslips guided on the body so as to expand by relative downward movementon the body, a Vsleeve mounted to slide on drive-down and the body,down-jar slips guided on the sleeve so as to expand by relative downwardmovement of the sleeve on the slips, a latch device having a triggermounted on the sleeve to swing toward or away from the body, said bodyhaving means cooperating with the trigger to latch the sleeve againstmovement along the body, a spring associated with the trigger to move itto its releasing position, a drag spring mounted on the body below theslee fe, a push-rod engaging the trigger and operating to hold the samein its latching position when the casing spear is passing down thecasing, said pushrod having a shoulder engaging the trigger andoperating to prevent relative upward movement o the drag spring withrespect to the body when the casing spear is passing dow-n the casing,vsaid drag spring operating upon an up pull of the'body to disengage thetrigger from the push-rod and thereby permit the trigger spring torelease the trigger and sleeve from the body, said sleeve operat ing`thereafter to descend by gravity, one of said down-jar slipsoperating-vte engage the said push-rod to eilect avrelative downwardmovementv of the sleeve to set that slip against the casing, otherpush-rods carried by the. drag spring for engaging the other down-garslips to se them against the casing, they aid descending movement oi'the sleeve operating to permit a downward movement ot the pull-up slipsto set them against the casing to enable an up pull on the body to gripthe casing with the pull-up slips and raise the same, said body and saidsleeve cooperating upon a down-jar thereafter to permit a downwardmovement of the body through the sleeve, thereby eii'ecting a'relativeupward movement of the pull-up slips to release the saine from thecasing, a trip device carried by the body and operating to engage thesleeve upon a down-jar of the body to picli up the sleeve on the body,vv.f'hereupcn an up pull on the body will e'ect an upward movement etthe sleeve and diseng ge the down-jar' slips to permit withawal et theeasing spear. 9. ln a combination drive-down and pulling spear, thecombination ot' a body, pullu} slips guided on the body, a sleevemounted to slide on the body, down-jar slips guided on the sleeve, alatch device for latcieng the sleeve to the body to prevent longitudinalmovement ci' the sleeve on the body, a dran' spring having means forholding the latch device in its latching position and operating torelease the latch device upon an upward pull of the body, means forsupporting the pull-up slips on the sleeve, and a trip device on thebody to enable the body to pick up the sleeve by a downward movement oithe body through the sleeve. e

l0. ln combination drive-down and pulling spear, trie combination of abody,

Lt L

pull-up slips guided on vthe body, a sleeve mounted 'lo slide on thebody, down-jar slips guided on the sleeve, a latch device .tor latchingthe sieevc to the body to prevent longitudinal movement of the sleeve onthe liraly. a drag spring having means for holding the la h device inits latching position and operati to release the latch device upon anupward pull ot the body, means for supporting the pullup slips on thesleeve, a tri p device on the body to enable the body to pick up thesleeve by a downward movement ot' the body through the sleeve, and meansconnected with the dragr spring for engaging the down-jar slips. n

ll. In a combination dri cedown and pulling spear, the combination of abody, pull-up slips guided on the body and operating to contract by arelative upward movement, a sleeve mounted to slide on the body,down-'jar slips guided on the sle ve, a collar mounted to slide on thebot y between the sleeve and the pull-up slips and connected with thepull-up slips to enable the'sleeve to engage the collar and raise thepull-up slips, a latch device for latching the sleeve to the body toprevent its movement along thevbody, a drag spring having means forholding` the latch device in its latching position and operating torelease the latch device upon an upward pull or' the body, a trip deviceon the body Vto enable the body to pick up the sleeves by a downwardmovement oi' the body through the sleeve and thereby lock the pullupslips in their contracted position.

12. In a combination drive-down and pulling spear, the combination of abody, pull-up slips guided on the body so that they move upwardly totheir contracted position, a sleeve mounted to slide on the body, acollar mounted on the body between the pull-up slips and the sleeve,stems connecting the pullaip slips with Ythe' collar, downjar slipsguided on the sleeve, a latch device for latching the sleeve againstmovement along the body, a drag spring having` means for holding thelatch device in its latching position and operating to release the latchdevice upon an upward pull oi the body, said sleeve operating to engagethe collar and support the pull-up slips, a trip device on the body toenable the body to pick up the eve b v a downward movement of the bodythrough the sleeve and thereby lock the pull-up slips in a relativelyelevated and contracted position on the body, and means carried by tuedrag spring ior engaging the down-jar slips.

lil. in a combination drive-down and pulling spear, the combination of abody, pull-up slips guided on the body so as to contract in theirelevated aosition, a sleeve mounted to slide on the body, down-jar slipsguided on the sleeve, a latch device for latchirej the sleeve to thebody, a drag spring having means for holding the latch device in itslatching position and operatii g to release the latch device upon anupward pull ot the body, means lor supporting the pull-up slips on thesleeve, and a trip device on the body normally held in a retractedposition by the sleeve and including means for moving the same to ancxtcnded position when it passes to a point below the sleeve, said tripdevice opcratwhen below the sleeve to pick up sleeve on the body andlock the pull-up sli in their relatively elevated and contractsposition.

i In a combination drive-donn and pulling spear, the combination of abody, pull-up slips guided on the body, a sl evo mounted to slide on thebody, and down-jar slips guided on the sleeve, a i

latch device i.l eluding a trigger h ving a tubular pivot on the sleeveand operatingr to swing in or out i a plane transverse to the axis olthe body, said body having means cool'ierating with the trigger to latchthe sleeve on the body, a drag spring mounted below the sleeve, apush-rod carried by the drag spring opcrating to engage the tri, gerwhen the spear is passing down the casing, a second push-rod inalignment with the tubular pivot et the trigger and adapted to passtheretlu'ougli, said drag spring operating upon an up pull of the bodyto release the trigger and permit the sleeve to descend on the body,said push-rods operating to engage the down- ;iar slips when the sleevedescends to set the down-jar slips against the casing.

l5. In a combination drive-down and pulling spear, the combination of abody, pull-up slips guided on the body, a sleeve mounted to slide on thebody, and down-jar slips guided on the sleeve, a latch device includinga trigger having a tubular pivot on the sleeve and operating to swing inor out in a plane transverse to the axis of the body, said body havingmeans cooperating with the trigger to latch the sleeve to the body, adrag spring mounted below the sleeve, a push-rod carried by the dragspringoperating to engage the trigger when the spear is passing down thecasing, a. second push-rod in alignment with the tubular pivot of thetrigger and adapted to pass therethrough, said drag spring operatingupon an up-pull of the body to release the trigger and permit the sleeveto descend on the body, lsaid push-rods operating to eugage the down-jarslips when the sleeve descends tol set the down-jar slips against thecasing, and means for preventing a rotation of the sleeve on the body.

16.111 a combination drive-down and pulling spear, the combination ot a.body, pullup slips guided on the body, a sleeve mounted to slide on thebody, and down-jar `with the trigger to latch the sleeve to the body, adrag spring mounted below the sleeve, a push-rod carried by the dragspring operating to engage the triggerwhen Y lthe spear is passing downthe casing, a second push-rod in alignment with the tubular pivot of thetrigger and adapted to p ass therethrough', said drag spring operatingupon an up-pull of the body to release the trigger and permit thesleeveto descend on the body, said push-rods operating to engage the down-j arslips When the sleeve descends to set the down-jar slips against thecasing, means :l'or preventing a rotation of the sleeve on the body, andmeans for preventing rotation of the drag spring on the body to maintainalignment of the push rods with their corresponding down-jar slips.

17. ln ya combination drive-down and pulling spear, the combination of abody, pull-upsslips guided onthe body so as to contract in theirelevated position, hoolrrods connected with the lower ends of the slips,a collar connected with the hoolr rods and mounted to slide on the body,a sleeve mounted to slideon the body below the collar, means forpreventing rotation of the sleeve on the body, down-jar slips guided onthe sleeve, a latch device on the sleeve including a trigger mounted toswing in a plane transverse to the axis of the body,

said body having a notch to cooperate with the trigger to latch thesleeve to the body, a drag spring below the sleeve having a plurality ofpush-rods corresponding to the down-jar slips and capable or' engagingthe lower ends of the down-j ar slips, c-ne of said push-rods operatingto engage the trigger and hold the same in its latching position whenthe spear is passing down the casing and also having a shoulder forengaging the trigger to prevent relative upward movement of thepush-rods with respect to the sleeve, a trigger spring associated withthe trigger for disengaging the trigger and sleeve troni the body whenthe body is pulled upwardly, therel releasing the sleeve and permittingthe saine to descend, said pushrods operating upon the descent or thesleeve, to engage the down-jar slips and move the same relativelyupwardly on the sleeve, and set the saine against the casing, means forpreventing rotation of the drag spring on the body to maintain the pushrods in alignment with the down-jar slips, a spring actuated trip devicecarried by .the body and held in its retracted position when the casingspear is passing down the casing, said trip device operating upon thedownward movement of the body within the sleeve, to extend itself belowthe sleeve and thereby enable the body to piek up the sleeve andoperating to lock the pullup slips in their contracted posit-ion.

Signed at West Chicago, lll., this 11th day of Dec., 1924.

PHILIP MQ REA.

